A great bit of Alan Partridge.
Jay Miner, father of the Amiga, cut his graphics teeth designing the TIA chip in the Atari 2600. I'd played a few VCS games on a cousin's system as a kid, but I never really appreciated the power locked within the machine. Sure, it only had a 1.19 MHz 6502 with it's wings clipped, and 128 bytes (!) of RAM, but TIA, synced to the cathode beam, allowed incredible feats to be achieved.
Here’s a few videos about the hardware, and developing software for the platform.
Stella - Incredible Atari 2600 emulator http://stella.sourceforge.net/
How to use the Stella Debugger, an incredible tool
Atari 2600 Roms